import router from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken, getUser } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login', '/regist'] // no redirect whitelist

router.beforeEach(async(to, from, next) => {
  // start progress bar
  NProgress.start()

  // set page title
  document.title = getPageTitle(to.meta.title)

  // determine whether the user has logged in
  const hasToken = getToken()
  const hasUser = getUser()

  if (hasToken) {
    if (to.path === '/login') {
      // if is logged in, redirect to the home page
      next({ path: '/' })
      NProgress.done()
    } else {
      // const hasGetUserInfo = store.getters.name
      // if (hasGetUserInfo) {
      // const hasRoles = store.getters.roles && store.getters.roles.length > 0
      if (hasUser) {
        try {
          const data = await store.dispatch('user/getInfo', hasUser)
          const hasRoles = store.getters.roles && store.getters.roles.length > 0
          // 这里也要把roles由字符串转为数组
          if (hasRoles) {
            try {
              const roles = data.role.split(',')
              // generate accessible routes map based on roles
              const accessRoutes = await store.dispatch('permission/generateRoutes', roles)
              router.addRoutes(accessRoutes)
              next()
            } catch (error) {
              await store.dispatch('user/resetToken')
              Message.error(error || '登录失效，请重新登陆！')
              // next(`/login?redirect=${to.path}`)
              next(`/login`)
              NProgress.done()
            }
          }
        } catch (error) {
          await store.dispatch('user/resetToken')
          Message.error(error || '登录失效，请重新登陆！')
          next(`/login`)
          NProgress.done()
        }
      } else {
        // try {
        //   // get user info
        //   await store.dispatch('user/getInfo')
        //   next()
        // } catch (error) {
        // remove token and go to login page to re-login
        await store.dispatch('user/resetToken')
        // Message.error(error || 'Has Error')
        Message.error('登录失效，请重新登陆！')
        next(`/login`)
        NProgress.done()
        // }
      }
    }
  } else {
    /* has no token*/

    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next()
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      Message.error('登录失效，请重新登陆！')
      next(`/login`)
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})
